LiasLight

LIAS light – Item Descriptions


LIASlight ItemID: 11832

Pertusaria diluta C. Björk, G. Thor & T. Wheeler

Characters[*]:Character States[*]:
global occurrence: Americas – North America (incl Mexico)
substrate: bark, cork, plant surface – trunks, branches, twigs
life habit: lichenized (mutualistic with algal photobionts)
thallus: crustose (crustaceous) – episubstratal – unspecified
thallus: cracked, fissured, fractured, rimose | compartimentized – areolate, squamulate
[th] upper surface: white(ish) | blue(ish) grey | green(ish) grey
[th marginal and upper surface] specific structures: absent
[th] morphol substructures (eg areoles, lobes, branches) width [mm]: (min) 0.16 (low) 0.2 (high) 0.3
[th] morphol substructures (eg areoles, lobes, branches) upper surface: smooth, plane
ascomata: absent | present
ascoma: apothecial, apothecioid – hymenial
ascoma [mm]: (min) 0.18 (low) 0.2 (high) 0.36 (max) 0.46
ascoma: immersed, innate | subsessile, subimmersed, adnate, semi-immersed, emergent | sessile, superficial
[ascm, if apoth] disc, mazaedium: concave | plane, flat, flattened, expanded
[ascm, if apoth] disc, mazaedium: yellow(ish) (if dull: buff) | yellow(ish) red (orange red)
[ascm, if apoth] disc, mazaedium: epruinose
[ascm] paraphyses/-oids: present
[ascm] paraphyses/-oid cells width [µm]: (median) 1.9 (max) 2.5
[ascm] paraphyses/-oid apical cells width [µm]: (min) 2.5 (low) 3.0 (high) 3.9 (max) 7.0
[ascm] epihymenium, epithecium: hyaline, colourless
asci: lecanoralean
[asc] tholus: thickened
[asc] tholus amyloidity (iodine reaction): present
[asc] tholus amyloidity pattern: with amyloid cap (= Icmadophila-, Lecidea-, Pertusaria-types etc)
ascospores: (min) 4.0 (low) 6.0 (high) 8.0
[asp] shape: ellipsoidal
[asp] length [µm]: (min) 10.0 (low) 33.6 (high) 36.8 (max) 44.0
[asp] width [µm]: (min) 7.0 (low) 17.0 (high) 21.0 (max) 24.0
[asp] septa: absent – spore lumen unilocular, monolocular
[asp] pigmentation: hyaline, colourless
[asp] perispore, epispore: not apparent | thin, thinly halonate
secondary metabolites: present
secondary metabolites: unknown/unidentified compound(s)
primary photobiont: present
secondary photobionts (eg in cephalodia): absent
primary photobiont: chlorophytaceous – trebouxiaceous, chlorococcoid

[*] Not all (synonymous, equivalent or similar) terms being provided in parallel for a character or character state (e.g. 'endosubstratal, inconspicuous, immersed') need to be valid for the taxon under concern.


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